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(No Model.)

A. M. BURRITT. Pire Extingusherf.

No. 243,206.. Patented June 21,1881.

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UNITED STATES PATENT OFFICE.

ALBERT M. BURRITT, OF WATERBURY, OONNEOTIOTT, ASSIGNOR TO THE ABURBITT HARDWARE COMPANY, OF SAME PLAGE.

FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 243,206, dated June 21, 1881,

Application tiled April 16, 1881. (No model.)

To all whom t may concern Beit known that I, ALBERT M. .BUERITL of Waterbury, in the county ot' New Haven and State ot' Connecticut, have. invented a new Improvementin Fire-Extinguishers; and I do hereby declare the following, when taken in connection with the accompanying drawings, and the letters otl reference marked thereon, to be a Jfull, clear, and exact description of the same,and which said drawings constitute part of this specification, and represent, in-

Figure l, side view; Fig.2, longitudinal central section.

This invention relates to an iinprovementin tire-extinguishers, with special reference to that class which are constructed to let on a flow ot` water by the influence ot heat generated by the tire on the device which stops the flow of water, and so that the water will be thrown through the pert'orations in the distributer in the form ot'spray, such distributer being commonlyr called a rosei In order to protect the distributer from the lodglnent ot' dust or other foreign particles therein which might obstruct the flow ot' water, a cap is arranged as a cover for the rose. ln some cases this is soldered at the edge around the rose as a stop for the water, so that.

when the heat is sufficient to fuse the connection it will be thrown oft and permit the flow of the water. In other cases there is a plug in the Water-way back of the distributer. The cap is simply set loosely over the distributer, so as to be easily thrown oit' when the ow ot' Water comes to it. It is on this latter arrangement that my invention is an improvementthat is to say, in the class ot' caps which are not for the purpose ofstop pin g the flow ofthe water.

The use ot' the free cap serves a very good purpose where the distributers are set perpendicularthat is, so as to throw upward; but in many cases it is desirable and necessary th at the rose should be turned downward. In that case the loose cap cannot be employed, and in any case the loose cap is liable to be accidentally removed.

The object of this invention is to secure the cap over the distributer in such a manner that the force ofthe water alone will disconnect it, and yet so that it is not liable to accidental disconnection; and in such construction my invention consists.

A represents the perforated rose or distributer, B, a thin metal cap titted and set on over the rose and inclosing it, as shown inFig.2. At the center or closed end of the cap a small perforation, as at a, is made, exposing a point ot' the rose beneath. Through this perforation a, a drop ot' solder, b, is introduced, which so t'ar connects the cap to the rose that the cap will be retained in this position, but yet when the Iiow of water is let on the pressure on the large interior surface of the cap will be sufticient to throw the cap from the rose, the force being greater than the strength of the connection.

Instead ot' a drop of solder, as proposed, the rose may be made with a stud projectingfrom it to pass through the perforation in the cap, and slightly headed upon the outside, just sutilcient to retain the cap. I prefer, however, a soft-metal connection, the essential feature being that the cap shall be connected to the rose bya connection which readily yields when the pressure of the water is brought upon the inside ot' the cap.

From the foregoing it will be understood that I do not broadly claim a cover for the rose or distributer in a fire-extinguisher; but

A rose-distributer combined with a cap attached thereto by a contrivancc substantially such as described, and so as to permit the disconnection of the cap when the pressure of water comes upon the inside of the cap, substantially as described.

ALBERT M. BUR RITT.

Witnesses:

JOHN E. EARLE, L. D, ROGERS. 

